|  |  | 
 |  |  |     @Autowired | 
 |  |  |     private CityWeatherForecastMapper cityWeatherForecastMapper; | 
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 |  |  |  | 
 |  |  |     //城市预测气象数据来源于,和风天气,逐小时天气预报(未来72小时)商业版 | 
 |  |  |     @Override | 
 |  |  |     public void insertCityWeatherForecast() { | 
 |  |  |         Date nextDay = DateUtils.addDays(new Date(), 1); | 
 |  |  | 
 |  |  |         } | 
 |  |  |         cityWeatherForecastMapper.insertCityWeatherForecast(cityWeatherForecasts); | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     public static void main(String[] args) { | 
 |  |  |         String time = "20221231"; | 
 |  |  |         long currentMils = DateUtils.getDate(time, DateUtils.yyyyMMdd_EN).getTime(); | 
 |  |  |  | 
 |  |  |         long startMils = DateUtils.getDate("2022", DateUtils.yyyy).getTime(); | 
 |  |  |         long mss = currentMils - startMils; | 
 |  |  |         long days = mss / (1000 * 60 * 60 * 24); | 
 |  |  |         System.out.println(days + 1); | 
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 |  |  |     } | 
 |  |  | } |